Product Details | SAFETY RELIEF VALVE

4820-01-140-4341 A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes VALVE (1), RELIEF, PRESSURE AND TEMPERATURE.

Part Alternates: D559T18M50, D559T1-8M-50, 4820-01-140-4341, 01-140-4341, 4820011404341, 011404341

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 12 OCT 1982 01-140-4341

Drawings & Photos | NSN 4820-01-140-4341


Demand History | NSN 4820-01-140-4341

Part Number Request Date QTY Origin
D559T1-8M-50 2024-08-225 1 DIBBS
4820-01-140-4341 2024-02-50 1 DIBBS
4820-01-140-4341 2012-11-334 1 DIBBS

Cross Reference | NSN 4820-01-140-4341

Part Number Cage Code Manufacturer
D559T1-8M-50 91816 CIRCOR AEROSPACE, INC. DBA CIRCLE SEAL CONTROLS

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Technical Data | NSN 4820-01-140-4341

Characteristic Specifications
MATERIAL STEEL COMP 316 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION AISI 316 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
STYLE DESIGNATOR C4 STRAIGHT THRU
FLOW CONTROL DEVICE POPPET
MEDIA FOR WHICH DESIGNED AIR 1ST RESPONSE ACETYLENE 2ND RESPONSE AMMONIA, GASEOUS 3RD RESPONSE REFRIGERANT 12 4TH RESPONSE HYDROGEN 5TH RESPONSE
MAXIMUM OPERATING PRESSURE 200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP -40.0 DEG FAHRENHEIT 1ST RESPONSE 250.0 DEG FAHRENHEIT 2ND RESPONSE
VALVE OPERATION METHOD AUTOMATIC
POWER DRIVE OPERATING PRESSURE 50.0 POUNDS PER SQUARE INCH NOMINAL
CONNECTION TYPE THREADED EXTERNAL PIPE 1ST END
CONNECTION STYLE G46B PLAIN 1ST END
THREAD SERIES DESIGNATOR NPT 1ST END
NOMINAL THREAD SIZE 1.000 INCHES 1ST END
THREAD DIRECTION RIGHT-HAND 1ST END
RENEWABLE SEAT RING TYPE PRESSED-IN
DISK LOADING METHOD SPRING
OPENING PRESSURE SETTING 50.0 POUNDS PER SQUARE INCH
ADJUSTABLE PRESSURE RANGE 29.0 TO 72.0 POUNDS PER SQUARE INCH
FURNISHED ITEMS AND QUANTITY 1 DEFLECTOR CAP

Restrictions/Controls & Freight Information | NSN 4820-01-140-4341

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
NMF Description 127220 PRESSURE REG/RED/RELIEF VALVES NOI
Less than car load rating
Less than truck load rating P 77.5
Water commodity Code 594 unknown
Originating Activity Code AX Defense Supply Center Columbus
Columbus, OH 43216-5000
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 4820-01-140-4341

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesJNOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each